{
  "canonical_id": "undici--CVE-2025-47279",
  "system_id": "undici",
  "display_name": "Undici",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "undici Denial of Service attack via bad certificate data",
  "summary": "### Impact\n\nApplications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. \n\n### Patches\n\nThis has been patched in https://github.com/nodejs/undici/pull/4088.\n\n### Workarounds\n\nIf a webhook fails, avoid keep calling it repeatedly.\n\n### References\n\nReported as: https://github.com/nodejs/undici/issues/3895",
  "published_at": "2025-05-15T14:15:06Z",
  "updated_at": "2026-02-06T22:08:08.311705Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2025-47279",
    "https://github.com/nodejs/undici/issues/3895",
    "https://github.com/nodejs/undici/pull/4088",
    "https://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25",
    "https://github.com/nodejs/undici"
  ],
  "aliases": [
    "CVE-2025-47279",
    "GHSA-cxrh-j4jr-qwg3"
  ],
  "cve_ids": [
    "CVE-2025-47279"
  ],
  "ghsa_ids": [
    "GHSA-cxrh-j4jr-qwg3"
  ],
  "osv_ids": [
    "GHSA-cxrh-j4jr-qwg3"
  ],
  "affected_versions": [
    "introduced=0, fixed<5.29.0",
    "introduced=6.0.0, fixed<6.21.2",
    "introduced=7.0.0, fixed<7.5.0"
  ],
  "fixed_versions": [
    "5.29.0",
    "6.21.2",
    "7.5.0"
  ],
  "package_name": "undici",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/undici/cases/undici-cve-2025-47279.md",
  "secure_code_topics": [
    "ssrf-url-validation",
    "proxy-trust-boundary"
  ],
  "status": "generated",
  "triage_reasons": [],
  "metadata": {
    "source_names": [
      "OSV Undici"
    ],
    "source_kinds": [
      "osv-batch"
    ],
    "candidate_count": 1
  }
}